Through media outlets, police urged citizens to evacuate central Oslo.

Although only minutes from central Oslo, Bygdøy maintains its rural character.

Since 2005, the institute has been located in the former gas works building in central Oslo.

The police asked people to leave central Oslo.

At the Garage, a bar in central Oslo.

Witnesses have also said several army soldiers have taken position around central Oslo.

They have said there is no gas network in central Oslo.

Huge crowd beginning to assemble in central Oslo ahead of a minute's silence in memory of the dead.

The man is suspected of having had some participation in the bombing of the government buildings in central Oslo.

Lindøya is a small island located in the Oslofjord, just south of central Oslo.